Purification Workflow Diagram¶
Preparative HPLC Peptide Purification¶
flowchart TD
A[Crude Peptide] --> B[Dissolve in<br/>Mobile Phase A];
B --> C[Filter<br/>0.45 μm];
C --> D[Equilibrate Column];
D --> E[Load Sample];
E --> F[Gradient Elution<br/>5-60% B];
F --> G[UV Detection<br/>214 nm];
G --> H[Peak Detection];
H --> I[Collect Fractions];
I --> J[Analytical HPLC<br/>Screen Fractions];
J --> K{Purity ≥98%?};
K -->|Yes| L[Pool Pure<br/>Fractions];
K -->|No| M{Purity ≥90%?};
M -->|Yes| N[Re-purify];
N --> F;
M -->|No| O[Discard];
L --> P[Lyophilize];
P --> Q[Final Purified<br/>Peptide]; Purity Decision Flow¶
| Crude Purity | Action |
|---|---|
| ≥85% | Single pass purification |
| 70–84% | May need re-purification |
| 60–70% | Requires 2 passes or method optimization |
| <60% | Review synthesis conditions |
- Preparative HPLC Peptide Purification — Review the section above for key parameters, methods, and quality criteria.
- Purity Decision Flow — Review the section above for key parameters, methods, and quality criteria.
Key Takeaways¶
- Preparative HPLC Peptide Purification — Review the section above for key parameters, methods, and quality criteria.
- Purity Decision Flow — Review the section above for key parameters, methods, and quality criteria.
🔗 Related: Purification Process | Preparative HPLC | HPLC Analysis